Isaiah 8:2

God selected two men whom he wanted to witness the writing or posting of this document to confirm the date of this prophecy. When the predicted events happened, they could faithfully testify that Isaiah had predicted them. One of the witnesses was Uriah ("Yahweh is light"). He was probably the high priest who built an altar, like the one in Damascus that Ahaz had seen, and set it up in place of the brazen altar (cf. 2 Kings 16:10-16). The position that this Zechariah ("Yahweh remembers") occupied is unknown, but he may have been a prominent public figure like Uriah (cf. 2 Chronicles 26:5; 2 Chronicles 29:12-13).